I have a 1997 Ford F-150 cranks but won't start

I have a 1997 Ford F-150 cranks but won't start. The truck had been sitting for 3 years with a tank full of gas when I bought it. My mechanic said it needed a new fuel pump and battery. He Replaced those and it still won't start. It cranks but won't turn over... he's worked on it for 2 days and now is telling me that the engine is locked up and I need a new engine. I'm not mechanic but I didn't think the Infineon would crank if it was locked up and wouldn't he know that immediately? I'm thinking I need a second opinion before investing in a new engine.

5 Answers

If it cranks but doesn't run, engine is NOT locked up. Locked up means engine doesn't turn (crank). Try spraying quick start in intake see if start for a bit, if it does, you still have a fuel issue, if it still doesn't start, check spark at spark plugs

Sounds like the "mechainc" is throwing parts at the problem in an
attempt to get it started. Throwing an engine at the problem will
solve the no start issue if the problem is elsewhere, as I suspect.
Hopefully he (or you) drained the three year old gasoline out of
the tank completely. Since most gas individuals is an ethanol
blend, I suspect the tank is loaded with water. by now.

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I have a 1997 Ford F-150 cranks but won't start. The truck had been sitting
for 3 years with a tank full of gas when I bought it. My mechanic said it
needed a new fuel pump and battery. He Replaced ...

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